Spring Cloud常见模块有哪些

发布时间:2021-11-17 13:55:22 作者:iii
来源:亿速云 阅读:161

这篇文章主要讲解了“Spring Cloud常见模块有哪些”,文中的讲解内容简单清晰,易于学习与理解,下面请大家跟着小编的思路慢慢深入,一起来研究和学习“Spring Cloud常见模块有哪些”吧!

什么是Spring Cloud :  

Spring Cloud 常见模块 :

Spring Cloud常见模块有哪些

spring cloud版本 : spring cloud 采用 Greenwich版本,对应spring boot 2.1.*版本

Eureka 入门

Eureka职责:

Eureka 入门案例

搭建父项目

<!--1 确定spring boot的版本-->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
    </parent>

    <!--2  确定sprig cloud版本-->
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <spring-cloud-release.version>Greenwich.RELEASE</spring-cloud-release.version>
    </properties>

    <!-- 3 锁定sprig cloud版本-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud-release.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <!-- 4 确定spring cloud私有仓库-->
    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

搭建注册中心

  <dependencies>
        <!--web起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- Eureka服务端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>
#服务端口号
server:
  port: 10086
#服务名称
spring:
  application:
    name: eurekaDemo
#注册中心地址
eureka:
  client:
    service-url:
      defaultZone: http://localhost:${server.port}/eureka   #eureka服务注册地址
    register-with-eureka: false     #关闭将自己注册到注册中心中
    fetch-registry: false           #关闭从注册中心获得列表(不拉去其他服务信息)
package com.czxy;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

@SpringBootApplication
@EnableEurekaServer     //开启eureka服务端
public class EurekaDemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(EurekaDemoApplication.class ,args);
    }
}

搭建服务提供方

<dependencies>
        <!--web起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- Eureka客户端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--spring boot监控-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>
#端口号
server:
  port: 8080
#服务名称
spring:
  application:
    name: service
eureka:
  client:
    service-url:
      defaultZone: http://localhost:10086/eureka
package com.czxy;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;


@SpringBootApplication
@EnableEurekaClient   //开启eureka客户端
public class ServiceApplication {
    public static void main(String[] args) {
        SpringApplication.run(ServiceApplication.class,args);
    }
}

步骤五:编写controller , 测试程序

package com.czxy.controller;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;


@RestController
@RequestMapping("/test")
public class TestController {
    @GetMapping
    public ResponseEntity<String> test(){
        return ResponseEntity.ok("测试数据");
    }
}

搭建 服务调用方

<dependencies>
        <!--web起步依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <!-- Eureka客户端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--spring boot监控-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>
#端口号
server:
  port: 9090
#服务名称
spring:
  application:
    name: client
eureka:
  client:
    service-url:
      defaultZone: http://localhost:10086/eureka
package com.czxy;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;


@SpringBootApplication
@EnableEurekaClient     //开启eureka客户端
public class ClientApplication {
    public static void main(String[] args) {
        SpringApplication.run(ClientApplication.class,args);
    }
}


调用方测试数据

Spring Cloud常见模块有哪些

package com.czxy.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;


@Configuration
public class HttpConfig {
    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }
}
package com.czxy.dao;

import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;


@Component
public class DataDao {
    @Resource
    private RestTemplate restTemplate;

    public ResponseEntity<String> data(){ 
                                          //服务提供方地址
        return restTemplate.getForEntity("http://localhost:8080/test",String.class);
    }
}
package com.czxy.controller;

import com.czxy.dao.DataDao;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;


@RestController
@RequestMapping("/data")
public class DataController {
    @Resource
    private DataDao dataDao;\

    @GetMapping
    public ResponseEntity data(){
        return dataDao.data();
    }
}

追加 ----> 配置eureka instance

Spring Cloud常见模块有哪些

yml文件配置

eureka:
  client:
    service-url:
      defaultZone: http://localhost:10086/eureka
  instance:
    instance-id: ${spring.application.name}:${spring.cloud.client.ip-address}:${server.port}
    prefer-ip-address: true   #注册中心可视化中显示IP地址
eureka.client.service-url.defaultZone=http://localhost:10086/eureka
eureka.instance.instance-id=${spring.application.name}:${spring.cloud.client.ip-address}:${server.port}
eureka.instance.prefer-ip-address=true

感谢各位的阅读,以上就是“Spring Cloud常见模块有哪些”的内容了,经过本文的学习后,相信大家对Spring Cloud常见模块有哪些这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是亿速云,小编将为大家推送更多相关知识点的文章,欢迎关注!

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